0 a military or naval officer who helps an officer of higher rank:
He became Napoleon's aide-de-camp in 1804.
The personal staff of other provincial authorities is perhaps a private secretary or possibly an aide-de-camp.
Normally the recipient is appointed as an air aide-de-camp to the head of state.
Each colonel's staff consisted of a quartermaster (second-in-command), judge, chancellor, aide-de-camp, and flag-bearer.
During his military service he served as his father's aide-de-camp, travelling with him on several foreign trips.
By the summer he was appointed colonel and became the emperor's aide-de-camp and chief of his household.
Also, an aide-de-camp wears a special aiguillette on the shoulder of his or her dress uniform.
A general's aide-de-camp carried a loop of cord to tie up the general's horse during dismount.
He asked an aide-de-camp who commanded the garrison.